Автор - dima0983

Помогите с решением!!!!!!!!!!!!!!!!

Ответ

Автор - aiperizakirbaeva1982

Ответ:1)6÷100=0,06;2)9÷100=0,09;3)96÷100=0,96;76÷100=0,76;104÷100=1,04;167÷100=1,67;215÷100=2,15;185÷100=1,85 это только первое упражнение




Ответ

Автор - alesyaperova
1.
1)6 div 100 = 0.06
2)9 div 100 = 0.09 \ 3)96 div 100 = 0.96 \ 4)76 div 100 = 0.76
5)104 div 100 = 1.04 \ 6)167 div 100 = 1.67
7)215 div 100 = 2.15 \ 8)185 div 100 = 1.85
2.

1)
 frac{4}{7}  div  frac{2}{5}  =  frac{4}{7}  times  frac{5}{2}  =  frac{10}{7}  = 1 frac{3}{7}
 frac{3}{10}  times  frac{5}{6}  =  frac{1}{10}
1 frac{3}{7}  +  frac{1}{10}  = 1 frac{30}{70}  +  frac{7}{70}  = 1 frac{37}{70}
2)
 frac{7}{10}  times  frac{3}{14}  =  frac{3}{20}
 frac{5}{12}  div  frac{1}{2}  =  frac{5}{12}  times  frac{2}{1}  =  frac{5}{6}
 frac{3}{20}  +  frac{5}{6}  =  frac{9}{60}  +  frac{50}{60}  =  frac{59}{60}
3)
14 frac{2}{5}  div 1 frac{1}{8}  =  frac{72}{5} div  frac{9}{8}  =  \  frac{72}{5}  times  frac{8}{9}  =  frac{64}{5}  = 12 frac{4}{5}  = 12.8
5 frac{3}{7}  times 7 frac{7}{20}  =  frac{38}{7}  times  frac{147}{20}   \  =  frac{19 times 21}{10}  =   frac{399}{10}  = 39 frac{9}{10}  = 39.9
12.8 + 39.9 = 52.7
4)
 frac{100}{9}  times  frac{189}{100}  = 21
 frac{21}{5}  div  frac{35}{6}  =  frac{21}{5}  times  frac{6}{35}   \ =  frac{3 times 6}{5 times 5}  = frac{18}{25}
21 -  frac{18}{25}  = 20 frac{25}{25}  -  frac{18}{25}  = 20 frac{7}{25}



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